1b53f2fa1SBrad Love // SPDX-License-Identifier: GPL-2.0 2b53f2fa1SBrad Love /* 3b53f2fa1SBrad Love * Driver for the MaxLinear MxL69x family of combo tuners/demods 4b53f2fa1SBrad Love * 5b53f2fa1SBrad Love * Copyright (C) 2020 Brad Love <brad@nextdimension.cc> 6b53f2fa1SBrad Love * 7b53f2fa1SBrad Love * based on code: 8b53f2fa1SBrad Love * Copyright (c) 2016 MaxLinear, Inc. All rights reserved 9b53f2fa1SBrad Love * which was released under GPL V2 10b53f2fa1SBrad Love */ 11b53f2fa1SBrad Love 12b53f2fa1SBrad Love #include <linux/mutex.h> 13b53f2fa1SBrad Love #include <linux/i2c-mux.h> 14b53f2fa1SBrad Love #include <linux/string.h> 15b53f2fa1SBrad Love #include <linux/firmware.h> 16b53f2fa1SBrad Love 17b53f2fa1SBrad Love #include "mxl692.h" 18b53f2fa1SBrad Love #include "mxl692_defs.h" 19b53f2fa1SBrad Love 20b53f2fa1SBrad Love static const struct dvb_frontend_ops mxl692_ops; 21b53f2fa1SBrad Love 22b53f2fa1SBrad Love struct mxl692_dev { 23b53f2fa1SBrad Love struct dvb_frontend fe; 24b53f2fa1SBrad Love struct i2c_client *i2c_client; 25b53f2fa1SBrad Love struct mutex i2c_lock; /* i2c command mutex */ 26b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type; 27b53f2fa1SBrad Love enum MXL_EAGLE_POWER_MODE_E power_mode; 28b53f2fa1SBrad Love u32 current_frequency; 29b53f2fa1SBrad Love int device_type; 30b53f2fa1SBrad Love int seqnum; 31b53f2fa1SBrad Love int init_done; 32b53f2fa1SBrad Love }; 33b53f2fa1SBrad Love 34b53f2fa1SBrad Love static int mxl692_i2c_write(struct mxl692_dev *dev, u8 *buffer, u16 buf_len) 35b53f2fa1SBrad Love { 36b53f2fa1SBrad Love int ret = 0; 37b53f2fa1SBrad Love struct i2c_msg msg = { 38b53f2fa1SBrad Love .addr = dev->i2c_client->addr, 39b53f2fa1SBrad Love .flags = 0, 40b53f2fa1SBrad Love .buf = buffer, 41b53f2fa1SBrad Love .len = buf_len 42b53f2fa1SBrad Love }; 43b53f2fa1SBrad Love 44b53f2fa1SBrad Love ret = i2c_transfer(dev->i2c_client->adapter, &msg, 1); 45b53f2fa1SBrad Love if (ret != 1) 46b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "i2c write error!\n"); 47b53f2fa1SBrad Love 48b53f2fa1SBrad Love return ret; 49b53f2fa1SBrad Love } 50b53f2fa1SBrad Love 51b53f2fa1SBrad Love static int mxl692_i2c_read(struct mxl692_dev *dev, u8 *buffer, u16 buf_len) 52b53f2fa1SBrad Love { 53b53f2fa1SBrad Love int ret = 0; 54b53f2fa1SBrad Love struct i2c_msg msg = { 55b53f2fa1SBrad Love .addr = dev->i2c_client->addr, 56b53f2fa1SBrad Love .flags = I2C_M_RD, 57b53f2fa1SBrad Love .buf = buffer, 58b53f2fa1SBrad Love .len = buf_len 59b53f2fa1SBrad Love }; 60b53f2fa1SBrad Love 61b53f2fa1SBrad Love ret = i2c_transfer(dev->i2c_client->adapter, &msg, 1); 62b53f2fa1SBrad Love if (ret != 1) 63b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "i2c read error!\n"); 64b53f2fa1SBrad Love 65b53f2fa1SBrad Love return ret; 66b53f2fa1SBrad Love } 67b53f2fa1SBrad Love 68b53f2fa1SBrad Love static int convert_endian(u32 size, u8 *d) 69b53f2fa1SBrad Love { 70b53f2fa1SBrad Love u32 i; 71b53f2fa1SBrad Love 72b53f2fa1SBrad Love for (i = 0; i < (size & ~3); i += 4) { 73b53f2fa1SBrad Love d[i + 0] ^= d[i + 3]; 74b53f2fa1SBrad Love d[i + 3] ^= d[i + 0]; 75b53f2fa1SBrad Love d[i + 0] ^= d[i + 3]; 76b53f2fa1SBrad Love 77b53f2fa1SBrad Love d[i + 1] ^= d[i + 2]; 78b53f2fa1SBrad Love d[i + 2] ^= d[i + 1]; 79b53f2fa1SBrad Love d[i + 1] ^= d[i + 2]; 80b53f2fa1SBrad Love } 81b53f2fa1SBrad Love 82b53f2fa1SBrad Love switch (size & 3) { 83b53f2fa1SBrad Love case 0: 84b53f2fa1SBrad Love case 1: 85b53f2fa1SBrad Love /* do nothing */ 86b53f2fa1SBrad Love break; 87b53f2fa1SBrad Love case 2: 88b53f2fa1SBrad Love d[i + 0] ^= d[i + 1]; 89b53f2fa1SBrad Love d[i + 1] ^= d[i + 0]; 90b53f2fa1SBrad Love d[i + 0] ^= d[i + 1]; 91b53f2fa1SBrad Love break; 92b53f2fa1SBrad Love 93b53f2fa1SBrad Love case 3: 94b53f2fa1SBrad Love d[i + 0] ^= d[i + 2]; 95b53f2fa1SBrad Love d[i + 2] ^= d[i + 0]; 96b53f2fa1SBrad Love d[i + 0] ^= d[i + 2]; 97b53f2fa1SBrad Love break; 98b53f2fa1SBrad Love } 99b53f2fa1SBrad Love return size; 100b53f2fa1SBrad Love } 101b53f2fa1SBrad Love 102b53f2fa1SBrad Love static int convert_endian_n(int n, u32 size, u8 *d) 103b53f2fa1SBrad Love { 104b53f2fa1SBrad Love int i, count = 0; 105b53f2fa1SBrad Love 106b53f2fa1SBrad Love for (i = 0; i < n; i += size) 107b53f2fa1SBrad Love count += convert_endian(size, d + i); 108b53f2fa1SBrad Love return count; 109b53f2fa1SBrad Love } 110b53f2fa1SBrad Love 111b53f2fa1SBrad Love static void mxl692_tx_swap(enum MXL_EAGLE_OPCODE_E opcode, u8 *buffer) 112b53f2fa1SBrad Love { 113b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 114b53f2fa1SBrad Love return; 115b53f2fa1SBrad Love #endif 116b53f2fa1SBrad Love buffer += MXL_EAGLE_HOST_MSG_HEADER_SIZE; /* skip API header */ 117b53f2fa1SBrad Love 118b53f2fa1SBrad Love switch (opcode) { 119b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_DEVICE_INTR_MASK_SET: 120b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET: 121b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_SMA_TRANSMIT_SET: 122b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 123b53f2fa1SBrad Love break; 124b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_PARAMS_SET: 125b53f2fa1SBrad Love buffer += 5; 126b53f2fa1SBrad Love buffer += convert_endian(2 * sizeof(u32), buffer); 127b53f2fa1SBrad Love break; 128b53f2fa1SBrad Love default: 129b53f2fa1SBrad Love /* no swapping - all get opcodes */ 130b53f2fa1SBrad Love /* ATSC/OOB no swapping */ 131b53f2fa1SBrad Love break; 132b53f2fa1SBrad Love } 133b53f2fa1SBrad Love } 134b53f2fa1SBrad Love 135b53f2fa1SBrad Love static void mxl692_rx_swap(enum MXL_EAGLE_OPCODE_E opcode, u8 *buffer) 136b53f2fa1SBrad Love { 137b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 138b53f2fa1SBrad Love return; 139b53f2fa1SBrad Love #endif 140b53f2fa1SBrad Love buffer += MXL_EAGLE_HOST_MSG_HEADER_SIZE; /* skip API header */ 141b53f2fa1SBrad Love 142b53f2fa1SBrad Love switch (opcode) { 143b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_TUNER_AGC_STATUS_GET: 144b53f2fa1SBrad Love buffer++; 145b53f2fa1SBrad Love buffer += convert_endian(2 * sizeof(u16), buffer); 146b53f2fa1SBrad Love break; 147b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_ATSC_STATUS_GET: 148b53f2fa1SBrad Love buffer += convert_endian_n(2, sizeof(u16), buffer); 149b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 150b53f2fa1SBrad Love break; 151b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET: 152b53f2fa1SBrad Love buffer += convert_endian(3 * sizeof(u32), buffer); 153b53f2fa1SBrad Love break; 154b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_ATSC_EQUALIZER_FILTER_FFE_TAPS_GET: 155b53f2fa1SBrad Love buffer += convert_endian_n(24, sizeof(u16), buffer); 156b53f2fa1SBrad Love break; 157b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_STATUS_GET: 158b53f2fa1SBrad Love buffer += 8; 159b53f2fa1SBrad Love buffer += convert_endian_n(2, sizeof(u16), buffer); 160b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 161b53f2fa1SBrad Love break; 162b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_ERROR_COUNTERS_GET: 163b53f2fa1SBrad Love buffer += convert_endian(7 * sizeof(u32), buffer); 164b53f2fa1SBrad Love break; 165b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_CONSTELLATION_VALUE_GET: 166b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_START_GET: 167b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_MIDDLE_GET: 168b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_END_GET: 169b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_SPUR_START_GET: 170b53f2fa1SBrad Love buffer += convert_endian_n(24, sizeof(u16), buffer); 171b53f2fa1SBrad Love break; 172b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_SPUR_END_GET: 173b53f2fa1SBrad Love buffer += convert_endian_n(8, sizeof(u16), buffer); 174b53f2fa1SBrad Love break; 175b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_FFE_GET: 176b53f2fa1SBrad Love buffer += convert_endian_n(17, sizeof(u16), buffer); 177b53f2fa1SBrad Love break; 178b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_OOB_ERROR_COUNTERS_GET: 179b53f2fa1SBrad Love buffer += convert_endian(3 * sizeof(u32), buffer); 180b53f2fa1SBrad Love break; 181b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_OOB_STATUS_GET: 182b53f2fa1SBrad Love buffer += convert_endian_n(2, sizeof(u16), buffer); 183b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 184b53f2fa1SBrad Love break; 185b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_SMA_RECEIVE_GET: 186b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 187b53f2fa1SBrad Love break; 188b53f2fa1SBrad Love default: 189b53f2fa1SBrad Love /* no swapping - all set opcodes */ 190b53f2fa1SBrad Love break; 191b53f2fa1SBrad Love } 192b53f2fa1SBrad Love } 193b53f2fa1SBrad Love 194b53f2fa1SBrad Love static u32 mxl692_checksum(u8 *buffer, u32 size) 195b53f2fa1SBrad Love { 196b53f2fa1SBrad Love u32 ix, div_size; 197b53f2fa1SBrad Love u32 cur_cksum = 0; 198b53f2fa1SBrad Love __be32 *buf; 199b53f2fa1SBrad Love 200b53f2fa1SBrad Love div_size = DIV_ROUND_UP(size, 4); 201b53f2fa1SBrad Love 202b53f2fa1SBrad Love buf = (__be32 *)buffer; 203b53f2fa1SBrad Love for (ix = 0; ix < div_size; ix++) 204b53f2fa1SBrad Love cur_cksum += be32_to_cpu(buf[ix]); 205b53f2fa1SBrad Love 206b53f2fa1SBrad Love cur_cksum ^= 0xDEADBEEF; 207b53f2fa1SBrad Love 208b53f2fa1SBrad Love return cur_cksum; 209b53f2fa1SBrad Love } 210b53f2fa1SBrad Love 211b53f2fa1SBrad Love static int mxl692_validate_fw_header(struct mxl692_dev *dev, 212b53f2fa1SBrad Love const u8 *buffer, u32 buf_len) 213b53f2fa1SBrad Love { 214b53f2fa1SBrad Love int status = 0; 215b53f2fa1SBrad Love u32 ix, temp; 216b53f2fa1SBrad Love __be32 *local_buf = NULL; 217b53f2fa1SBrad Love u8 temp_cksum = 0; 218bc4f21fcSColin Ian King static const u8 fw_hdr[] = { 219bc4f21fcSColin Ian King 0x4D, 0x31, 0x10, 0x02, 0x40, 0x00, 0x00, 0x80 220bc4f21fcSColin Ian King }; 221b53f2fa1SBrad Love 222b53f2fa1SBrad Love if (memcmp(buffer, fw_hdr, 8) != 0) { 223b53f2fa1SBrad Love status = -EINVAL; 224b53f2fa1SBrad Love goto err_finish; 225b53f2fa1SBrad Love } 226b53f2fa1SBrad Love 227b53f2fa1SBrad Love local_buf = (__be32 *)(buffer + 8); 228b53f2fa1SBrad Love temp = be32_to_cpu(*local_buf); 229b53f2fa1SBrad Love 230b53f2fa1SBrad Love if ((buf_len - 16) != temp >> 8) { 231b53f2fa1SBrad Love status = -EINVAL; 232b53f2fa1SBrad Love goto err_finish; 233b53f2fa1SBrad Love } 234b53f2fa1SBrad Love 235b53f2fa1SBrad Love for (ix = 16; ix < buf_len; ix++) 236b53f2fa1SBrad Love temp_cksum += buffer[ix]; 237b53f2fa1SBrad Love 238b53f2fa1SBrad Love if (temp_cksum != buffer[11]) 239b53f2fa1SBrad Love status = -EINVAL; 240b53f2fa1SBrad Love 241b53f2fa1SBrad Love err_finish: 242b53f2fa1SBrad Love if (status) 243b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "failed\n"); 244b53f2fa1SBrad Love return status; 245b53f2fa1SBrad Love } 246b53f2fa1SBrad Love 247b53f2fa1SBrad Love static int mxl692_write_fw_block(struct mxl692_dev *dev, const u8 *buffer, 248b53f2fa1SBrad Love u32 buf_len, u32 *index) 249b53f2fa1SBrad Love { 250b53f2fa1SBrad Love int status = 0; 251b53f2fa1SBrad Love u32 ix = 0, total_len = 0, addr = 0, chunk_len = 0, prevchunk_len = 0; 252b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 253b53f2fa1SBrad Love int payload_max = MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE; 254b53f2fa1SBrad Love 255b53f2fa1SBrad Love ix = *index; 256b53f2fa1SBrad Love 257b53f2fa1SBrad Love if (buffer[ix] == 0x53) { 258b53f2fa1SBrad Love total_len = buffer[ix + 1] << 16 | buffer[ix + 2] << 8 | buffer[ix + 3]; 259b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; 260b53f2fa1SBrad Love addr = buffer[ix + 4] << 24 | buffer[ix + 5] << 16 | 261b53f2fa1SBrad Love buffer[ix + 6] << 8 | buffer[ix + 7]; 262b53f2fa1SBrad Love ix += MXL_EAGLE_FW_SEGMENT_HEADER_SIZE; 263b53f2fa1SBrad Love 264b53f2fa1SBrad Love while ((total_len > 0) && (status == 0)) { 265b53f2fa1SBrad Love plocal_buf = local_buf; 266b53f2fa1SBrad Love chunk_len = (total_len < payload_max) ? total_len : payload_max; 267b53f2fa1SBrad Love 268b53f2fa1SBrad Love *plocal_buf++ = 0xFC; 269b53f2fa1SBrad Love *plocal_buf++ = chunk_len + sizeof(u32); 270b53f2fa1SBrad Love 271b53f2fa1SBrad Love *(u32 *)plocal_buf = addr + prevchunk_len; 272b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 273b53f2fa1SBrad Love convert_endian(sizeof(u32), plocal_buf); 274b53f2fa1SBrad Love #endif 275b53f2fa1SBrad Love plocal_buf += sizeof(u32); 276b53f2fa1SBrad Love 277b53f2fa1SBrad Love memcpy(plocal_buf, &buffer[ix], chunk_len); 278b53f2fa1SBrad Love convert_endian(chunk_len, plocal_buf); 279b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 280b53f2fa1SBrad Love (chunk_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { 281b53f2fa1SBrad Love status = -EREMOTEIO; 282b53f2fa1SBrad Love break; 283b53f2fa1SBrad Love } 284b53f2fa1SBrad Love 285b53f2fa1SBrad Love prevchunk_len += chunk_len; 286b53f2fa1SBrad Love total_len -= chunk_len; 287b53f2fa1SBrad Love ix += chunk_len; 288b53f2fa1SBrad Love } 289b53f2fa1SBrad Love *index = ix; 290b53f2fa1SBrad Love } else { 291b53f2fa1SBrad Love status = -EINVAL; 292b53f2fa1SBrad Love } 293b53f2fa1SBrad Love 294b53f2fa1SBrad Love if (status) 295b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 296b53f2fa1SBrad Love 297b53f2fa1SBrad Love return status; 298b53f2fa1SBrad Love } 299b53f2fa1SBrad Love 300b53f2fa1SBrad Love static int mxl692_memwrite(struct mxl692_dev *dev, u32 addr, 301b53f2fa1SBrad Love u8 *buffer, u32 size) 302b53f2fa1SBrad Love { 303b53f2fa1SBrad Love int status = 0, total_len = 0; 304b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 305b53f2fa1SBrad Love 306b53f2fa1SBrad Love total_len = size; 307b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; /* 4 byte alignment */ 308b53f2fa1SBrad Love 309b53f2fa1SBrad Love if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE)) 310b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); 311b53f2fa1SBrad Love 312b53f2fa1SBrad Love plocal_buf = local_buf; 313b53f2fa1SBrad Love 314b53f2fa1SBrad Love *plocal_buf++ = 0xFC; 315b53f2fa1SBrad Love *plocal_buf++ = total_len + sizeof(u32); 316b53f2fa1SBrad Love 317b53f2fa1SBrad Love *(u32 *)plocal_buf = addr; 318b53f2fa1SBrad Love plocal_buf += sizeof(u32); 319b53f2fa1SBrad Love 320b53f2fa1SBrad Love memcpy(plocal_buf, buffer, total_len); 321b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 322b53f2fa1SBrad Love convert_endian(sizeof(u32) + total_len, local_buf + 2); 323b53f2fa1SBrad Love #endif 324b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 325b53f2fa1SBrad Love (total_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { 326b53f2fa1SBrad Love status = -EREMOTEIO; 327b53f2fa1SBrad Love goto err_finish; 328b53f2fa1SBrad Love } 329b53f2fa1SBrad Love 330b53f2fa1SBrad Love return status; 331b53f2fa1SBrad Love err_finish: 332b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 333b53f2fa1SBrad Love return status; 334b53f2fa1SBrad Love } 335b53f2fa1SBrad Love 336b53f2fa1SBrad Love static int mxl692_memread(struct mxl692_dev *dev, u32 addr, 337b53f2fa1SBrad Love u8 *buffer, u32 size) 338b53f2fa1SBrad Love { 339b53f2fa1SBrad Love int status = 0; 340b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_I2C_MHEADER_SIZE] = {}, *plocal_buf = NULL; 341b53f2fa1SBrad Love 342b53f2fa1SBrad Love plocal_buf = local_buf; 343b53f2fa1SBrad Love 344b53f2fa1SBrad Love *plocal_buf++ = 0xFB; 345b53f2fa1SBrad Love *plocal_buf++ = sizeof(u32); 346b53f2fa1SBrad Love *(u32 *)plocal_buf = addr; 347b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 348b53f2fa1SBrad Love convert_endian(sizeof(u32), plocal_buf); 349b53f2fa1SBrad Love #endif 350b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 351b53f2fa1SBrad Love 352b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_MHEADER_SIZE) > 0) { 353b53f2fa1SBrad Love size = (size + 3) & ~3; /* 4 byte alignment */ 354b53f2fa1SBrad Love status = mxl692_i2c_read(dev, buffer, (u16)size) < 0 ? -EREMOTEIO : 0; 355b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 356b53f2fa1SBrad Love if (status == 0) 357b53f2fa1SBrad Love convert_endian(size, buffer); 358b53f2fa1SBrad Love #endif 359b53f2fa1SBrad Love } else { 360b53f2fa1SBrad Love status = -EREMOTEIO; 361b53f2fa1SBrad Love } 362b53f2fa1SBrad Love 363b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 364b53f2fa1SBrad Love 365b53f2fa1SBrad Love if (status) 366b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 367b53f2fa1SBrad Love 368b53f2fa1SBrad Love return status; 369b53f2fa1SBrad Love } 370b53f2fa1SBrad Love 371b53f2fa1SBrad Love static const char *mxl692_opcode_string(u8 opcode) 372b53f2fa1SBrad Love { 37341033690SJiapeng Chong if (opcode <= MXL_EAGLE_OPCODE_INTERNAL) 374b53f2fa1SBrad Love return MXL_EAGLE_OPCODE_STRING[opcode]; 375b53f2fa1SBrad Love 376b53f2fa1SBrad Love return "invalid opcode"; 377b53f2fa1SBrad Love } 378b53f2fa1SBrad Love 379b53f2fa1SBrad Love static int mxl692_opwrite(struct mxl692_dev *dev, u8 *buffer, 380b53f2fa1SBrad Love u32 size) 381b53f2fa1SBrad Love { 382b53f2fa1SBrad Love int status = 0, total_len = 0; 383b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 384b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_hdr = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)buffer; 385b53f2fa1SBrad Love 386b53f2fa1SBrad Love total_len = size; 387b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; /* 4 byte alignment */ 388b53f2fa1SBrad Love 389b53f2fa1SBrad Love if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) 390b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); 391b53f2fa1SBrad Love 392b53f2fa1SBrad Love plocal_buf = local_buf; 393b53f2fa1SBrad Love 394b53f2fa1SBrad Love *plocal_buf++ = 0xFE; 395b53f2fa1SBrad Love *plocal_buf++ = (u8)total_len; 396b53f2fa1SBrad Love 397b53f2fa1SBrad Love memcpy(plocal_buf, buffer, total_len); 398b53f2fa1SBrad Love convert_endian(total_len, plocal_buf); 399b53f2fa1SBrad Love 400b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 401b53f2fa1SBrad Love (total_len + MXL_EAGLE_I2C_PHEADER_SIZE)) < 0) { 402b53f2fa1SBrad Love status = -EREMOTEIO; 403b53f2fa1SBrad Love goto err_finish; 404b53f2fa1SBrad Love } 405b53f2fa1SBrad Love err_finish: 406b53f2fa1SBrad Love if (status) 407b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "opcode %s err %d\n", 408b53f2fa1SBrad Love mxl692_opcode_string(tx_hdr->opcode), status); 409b53f2fa1SBrad Love return status; 410b53f2fa1SBrad Love } 411b53f2fa1SBrad Love 412b53f2fa1SBrad Love static int mxl692_opread(struct mxl692_dev *dev, u8 *buffer, 413b53f2fa1SBrad Love u32 size) 414b53f2fa1SBrad Love { 415b53f2fa1SBrad Love int status = 0; 416b53f2fa1SBrad Love u32 ix = 0; 417b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_I2C_PHEADER_SIZE] = {}; 418b53f2fa1SBrad Love 419b53f2fa1SBrad Love local_buf[0] = 0xFD; 420b53f2fa1SBrad Love local_buf[1] = 0; 421b53f2fa1SBrad Love 422b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_PHEADER_SIZE) > 0) { 423b53f2fa1SBrad Love size = (size + 3) & ~3; /* 4 byte alignment */ 424b53f2fa1SBrad Love 425b53f2fa1SBrad Love /* Read in 4 byte chunks */ 426b53f2fa1SBrad Love for (ix = 0; ix < size; ix += 4) { 427b53f2fa1SBrad Love if (mxl692_i2c_read(dev, buffer + ix, 4) < 0) { 428b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "ix=%d size=%d\n", ix, size); 429b53f2fa1SBrad Love status = -EREMOTEIO; 430b53f2fa1SBrad Love goto err_finish; 431b53f2fa1SBrad Love } 432b53f2fa1SBrad Love } 433b53f2fa1SBrad Love convert_endian(size, buffer); 434b53f2fa1SBrad Love } else { 435b53f2fa1SBrad Love status = -EREMOTEIO; 436b53f2fa1SBrad Love } 437b53f2fa1SBrad Love err_finish: 438b53f2fa1SBrad Love if (status) 439b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 440b53f2fa1SBrad Love return status; 441b53f2fa1SBrad Love } 442b53f2fa1SBrad Love 443b53f2fa1SBrad Love static int mxl692_i2c_writeread(struct mxl692_dev *dev, 444b53f2fa1SBrad Love u8 opcode, 445b53f2fa1SBrad Love u8 *tx_payload, 446b53f2fa1SBrad Love u8 tx_payload_size, 447b53f2fa1SBrad Love u8 *rx_payload, 448b53f2fa1SBrad Love u8 rx_payload_expected) 449b53f2fa1SBrad Love { 450b53f2fa1SBrad Love int status = 0, timeout = 40; 451b53f2fa1SBrad Love u8 tx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 452b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 453b53f2fa1SBrad Love u32 resp_checksum = 0, resp_checksum_tmp = 0; 454b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_header; 455b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *rx_header; 456b53f2fa1SBrad Love 457b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 458b53f2fa1SBrad Love 459b53f2fa1SBrad Love if ((tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE) > 460b53f2fa1SBrad Love (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) { 461b53f2fa1SBrad Love status = -EINVAL; 462b53f2fa1SBrad Love goto err_finish; 463b53f2fa1SBrad Love } 464b53f2fa1SBrad Love 465b53f2fa1SBrad Love tx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)tx_buf; 466b53f2fa1SBrad Love tx_header->opcode = opcode; 467b53f2fa1SBrad Love tx_header->seqnum = dev->seqnum++; 468b53f2fa1SBrad Love tx_header->payload_size = tx_payload_size; 469b53f2fa1SBrad Love tx_header->checksum = 0; 470b53f2fa1SBrad Love 471b53f2fa1SBrad Love if (dev->seqnum == 0) 472b53f2fa1SBrad Love dev->seqnum = 1; 473b53f2fa1SBrad Love 474b53f2fa1SBrad Love if (tx_payload && tx_payload_size > 0) 475b53f2fa1SBrad Love memcpy(&tx_buf[MXL_EAGLE_HOST_MSG_HEADER_SIZE], tx_payload, tx_payload_size); 476b53f2fa1SBrad Love 477b53f2fa1SBrad Love mxl692_tx_swap(opcode, tx_buf); 478b53f2fa1SBrad Love 479b53f2fa1SBrad Love tx_header->checksum = 0; 480b53f2fa1SBrad Love tx_header->checksum = mxl692_checksum(tx_buf, 481b53f2fa1SBrad Love MXL_EAGLE_HOST_MSG_HEADER_SIZE + tx_payload_size); 482b53f2fa1SBrad Love #ifdef __LITTLE_ENDIAN 483b53f2fa1SBrad Love convert_endian(4, (u8 *)&tx_header->checksum); /* cksum is big endian */ 484b53f2fa1SBrad Love #endif 485b53f2fa1SBrad Love /* send Tx message */ 486b53f2fa1SBrad Love status = mxl692_opwrite(dev, tx_buf, 487b53f2fa1SBrad Love tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE); 488b53f2fa1SBrad Love if (status) { 489b53f2fa1SBrad Love status = -EREMOTEIO; 490b53f2fa1SBrad Love goto err_finish; 491b53f2fa1SBrad Love } 492b53f2fa1SBrad Love 493b53f2fa1SBrad Love /* receive Rx message (polling) */ 494b53f2fa1SBrad Love rx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)rx_buf; 495b53f2fa1SBrad Love 496b53f2fa1SBrad Love do { 497b53f2fa1SBrad Love status = mxl692_opread(dev, rx_buf, 498b53f2fa1SBrad Love rx_payload_expected + MXL_EAGLE_HOST_MSG_HEADER_SIZE); 499b53f2fa1SBrad Love usleep_range(1000, 2000); 500b53f2fa1SBrad Love timeout--; 501b53f2fa1SBrad Love } while ((timeout > 0) && (status == 0) && 502b53f2fa1SBrad Love (rx_header->seqnum == 0) && 503b53f2fa1SBrad Love (rx_header->checksum == 0)); 504b53f2fa1SBrad Love 505b53f2fa1SBrad Love if (timeout == 0 || status) { 506b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "timeout=%d status=%d\n", 507b53f2fa1SBrad Love timeout, status); 508b53f2fa1SBrad Love status = -ETIMEDOUT; 509b53f2fa1SBrad Love goto err_finish; 510b53f2fa1SBrad Love } 511b53f2fa1SBrad Love 512b53f2fa1SBrad Love if (rx_header->status) { 513b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "rx header status code: %d\n", rx_header->status); 514b53f2fa1SBrad Love status = -EREMOTEIO; 515b53f2fa1SBrad Love goto err_finish; 516b53f2fa1SBrad Love } 517b53f2fa1SBrad Love 518b53f2fa1SBrad Love if (rx_header->seqnum != tx_header->seqnum || 519b53f2fa1SBrad Love rx_header->opcode != tx_header->opcode || 520b53f2fa1SBrad Love rx_header->payload_size != rx_payload_expected) { 521b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "Something failed seq=%s opcode=%s pSize=%s\n", 522b53f2fa1SBrad Love rx_header->seqnum != tx_header->seqnum ? "X" : "0", 523b53f2fa1SBrad Love rx_header->opcode != tx_header->opcode ? "X" : "0", 524b53f2fa1SBrad Love rx_header->payload_size != rx_payload_expected ? "X" : "0"); 525b53f2fa1SBrad Love if (rx_header->payload_size != rx_payload_expected) 526b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, 527b53f2fa1SBrad Love "rx_header->payloadSize=%d rx_payload_expected=%d\n", 528b53f2fa1SBrad Love rx_header->payload_size, rx_payload_expected); 529b53f2fa1SBrad Love status = -EREMOTEIO; 530b53f2fa1SBrad Love goto err_finish; 531b53f2fa1SBrad Love } 532b53f2fa1SBrad Love 533b53f2fa1SBrad Love resp_checksum = rx_header->checksum; 534b53f2fa1SBrad Love rx_header->checksum = 0; 535b53f2fa1SBrad Love 536b53f2fa1SBrad Love resp_checksum_tmp = mxl692_checksum(rx_buf, 537b53f2fa1SBrad Love MXL_EAGLE_HOST_MSG_HEADER_SIZE + rx_header->payload_size); 538b53f2fa1SBrad Love #ifdef __LITTLE_ENDIAN 539b53f2fa1SBrad Love convert_endian(4, (u8 *)&resp_checksum_tmp); /* cksum is big endian */ 540b53f2fa1SBrad Love #endif 541b53f2fa1SBrad Love if (resp_checksum != resp_checksum_tmp) { 542b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "rx checksum failure\n"); 543b53f2fa1SBrad Love status = -EREMOTEIO; 544b53f2fa1SBrad Love goto err_finish; 545b53f2fa1SBrad Love } 546b53f2fa1SBrad Love 547b53f2fa1SBrad Love mxl692_rx_swap(rx_header->opcode, rx_buf); 548b53f2fa1SBrad Love 549b53f2fa1SBrad Love if (rx_header->payload_size > 0) { 550b53f2fa1SBrad Love if (!rx_payload) { 551b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "no rx payload?!?\n"); 552b53f2fa1SBrad Love status = -EREMOTEIO; 553b53f2fa1SBrad Love goto err_finish; 554b53f2fa1SBrad Love } 555b53f2fa1SBrad Love memcpy(rx_payload, rx_buf + MXL_EAGLE_HOST_MSG_HEADER_SIZE, 556b53f2fa1SBrad Love rx_header->payload_size); 557b53f2fa1SBrad Love } 558b53f2fa1SBrad Love err_finish: 559b53f2fa1SBrad Love if (status) 560b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 561b53f2fa1SBrad Love 562b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 563b53f2fa1SBrad Love return status; 564b53f2fa1SBrad Love } 565b53f2fa1SBrad Love 566b53f2fa1SBrad Love static int mxl692_fwdownload(struct mxl692_dev *dev, 567b53f2fa1SBrad Love const u8 *firmware_buf, u32 buf_len) 568b53f2fa1SBrad Love { 569b53f2fa1SBrad Love int status = 0; 570b53f2fa1SBrad Love u32 ix, reg_val = 0x1; 571b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 572b53f2fa1SBrad Love struct MXL_EAGLE_DEV_STATUS_T *dev_status; 573b53f2fa1SBrad Love 574b53f2fa1SBrad Love if (buf_len < MXL_EAGLE_FW_HEADER_SIZE || 575b53f2fa1SBrad Love buf_len > MXL_EAGLE_FW_MAX_SIZE_IN_KB * 1000) 576b53f2fa1SBrad Love return -EINVAL; 577b53f2fa1SBrad Love 578b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 579b53f2fa1SBrad Love 580b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 581b53f2fa1SBrad Love 582b53f2fa1SBrad Love status = mxl692_validate_fw_header(dev, firmware_buf, buf_len); 583b53f2fa1SBrad Love if (status) 584b53f2fa1SBrad Love goto err_finish; 585b53f2fa1SBrad Love 586b53f2fa1SBrad Love ix = 16; 587b53f2fa1SBrad Love status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* DRAM */ 588b53f2fa1SBrad Love if (status) 589b53f2fa1SBrad Love goto err_finish; 590b53f2fa1SBrad Love 591b53f2fa1SBrad Love status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* IRAM */ 592b53f2fa1SBrad Love if (status) 593b53f2fa1SBrad Love goto err_finish; 594b53f2fa1SBrad Love 595b53f2fa1SBrad Love /* release CPU from reset */ 596b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 597b53f2fa1SBrad Love if (status) 598b53f2fa1SBrad Love goto err_finish; 599b53f2fa1SBrad Love 600b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 601b53f2fa1SBrad Love 602b53f2fa1SBrad Love if (status == 0) { 603b53f2fa1SBrad Love /* verify FW is alive */ 604b53f2fa1SBrad Love usleep_range(MXL_EAGLE_FW_LOAD_TIME * 1000, (MXL_EAGLE_FW_LOAD_TIME + 5) * 1000); 605b53f2fa1SBrad Love dev_status = (struct MXL_EAGLE_DEV_STATUS_T *)&rx_buf; 606b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 607b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_STATUS_GET, 608b53f2fa1SBrad Love NULL, 609b53f2fa1SBrad Love 0, 610b53f2fa1SBrad Love (u8 *)dev_status, 611b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_DEV_STATUS_T)); 612b53f2fa1SBrad Love } 613b53f2fa1SBrad Love 614b53f2fa1SBrad Love return status; 615b53f2fa1SBrad Love err_finish: 616b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 617b53f2fa1SBrad Love if (status) 618b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 619b53f2fa1SBrad Love return status; 620b53f2fa1SBrad Love } 621b53f2fa1SBrad Love 622b53f2fa1SBrad Love static int mxl692_get_versions(struct mxl692_dev *dev) 623b53f2fa1SBrad Love { 624b53f2fa1SBrad Love int status = 0; 625b53f2fa1SBrad Love struct MXL_EAGLE_DEV_VER_T dev_ver = {}; 626b53f2fa1SBrad Love static const char * const chip_id[] = {"N/A", "691", "248", "692"}; 627b53f2fa1SBrad Love 628b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, MXL_EAGLE_OPCODE_DEVICE_VERSION_GET, 629b53f2fa1SBrad Love NULL, 630b53f2fa1SBrad Love 0, 631b53f2fa1SBrad Love (u8 *)&dev_ver, 632b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_DEV_VER_T)); 633b53f2fa1SBrad Love if (status) 634b53f2fa1SBrad Love return status; 635b53f2fa1SBrad Love 636b53f2fa1SBrad Love dev_info(&dev->i2c_client->dev, "MxL692_DEMOD Chip ID: %s\n", 637b53f2fa1SBrad Love chip_id[dev_ver.chip_id]); 638b53f2fa1SBrad Love 639b53f2fa1SBrad Love dev_info(&dev->i2c_client->dev, 640b53f2fa1SBrad Love "MxL692_DEMOD FW Version: %d.%d.%d.%d_RC%d\n", 641b53f2fa1SBrad Love dev_ver.firmware_ver[0], 642b53f2fa1SBrad Love dev_ver.firmware_ver[1], 643b53f2fa1SBrad Love dev_ver.firmware_ver[2], 644b53f2fa1SBrad Love dev_ver.firmware_ver[3], 645b53f2fa1SBrad Love dev_ver.firmware_ver[4]); 646b53f2fa1SBrad Love 647b53f2fa1SBrad Love return status; 648b53f2fa1SBrad Love } 649b53f2fa1SBrad Love 650b53f2fa1SBrad Love static int mxl692_reset(struct mxl692_dev *dev) 651b53f2fa1SBrad Love { 652b53f2fa1SBrad Love int status = 0; 653b53f2fa1SBrad Love u32 dev_type = MXL_EAGLE_DEVICE_MAX, reg_val = 0x2; 654b53f2fa1SBrad Love 655b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 656b53f2fa1SBrad Love 657b53f2fa1SBrad Love /* legacy i2c override */ 658b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x80000100, (u8 *)®_val, sizeof(u32)); 659b53f2fa1SBrad Love if (status) 660b53f2fa1SBrad Love goto err_finish; 661b53f2fa1SBrad Love 662b53f2fa1SBrad Love /* verify sku */ 663b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000188, (u8 *)&dev_type, sizeof(u32)); 664b53f2fa1SBrad Love if (status) 665b53f2fa1SBrad Love goto err_finish; 666b53f2fa1SBrad Love 667b53f2fa1SBrad Love if (dev_type != dev->device_type) 668b53f2fa1SBrad Love goto err_finish; 669b53f2fa1SBrad Love 670b53f2fa1SBrad Love err_finish: 671b53f2fa1SBrad Love if (status) 672b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 673b53f2fa1SBrad Love return status; 674b53f2fa1SBrad Love } 675b53f2fa1SBrad Love 676b53f2fa1SBrad Love static int mxl692_config_regulators(struct mxl692_dev *dev, 677b53f2fa1SBrad Love enum MXL_EAGLE_POWER_SUPPLY_SOURCE_E power_supply) 678b53f2fa1SBrad Love { 679b53f2fa1SBrad Love int status = 0; 680b53f2fa1SBrad Love u32 reg_val; 681b53f2fa1SBrad Love 682b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 683b53f2fa1SBrad Love 684b53f2fa1SBrad Love /* configure main regulator according to the power supply source */ 685b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 686b53f2fa1SBrad Love if (status) 687b53f2fa1SBrad Love goto err_finish; 688b53f2fa1SBrad Love 689b53f2fa1SBrad Love reg_val &= 0x00FFFFFF; 690b53f2fa1SBrad Love reg_val |= (power_supply == MXL_EAGLE_POWER_SUPPLY_SOURCE_SINGLE) ? 691b53f2fa1SBrad Love 0x14000000 : 0x10000000; 692b53f2fa1SBrad Love 693b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 694b53f2fa1SBrad Love if (status) 695b53f2fa1SBrad Love goto err_finish; 696b53f2fa1SBrad Love 697b53f2fa1SBrad Love /* configure digital regulator to high current mode */ 698b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); 699b53f2fa1SBrad Love if (status) 700b53f2fa1SBrad Love goto err_finish; 701b53f2fa1SBrad Love 702b53f2fa1SBrad Love reg_val |= 0x800; 703b53f2fa1SBrad Love 704b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); 705b53f2fa1SBrad Love 706b53f2fa1SBrad Love err_finish: 707b53f2fa1SBrad Love if (status) 708b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 709b53f2fa1SBrad Love return status; 710b53f2fa1SBrad Love } 711b53f2fa1SBrad Love 712b53f2fa1SBrad Love static int mxl692_config_xtal(struct mxl692_dev *dev, 713b53f2fa1SBrad Love struct MXL_EAGLE_DEV_XTAL_T *dev_xtal) 714b53f2fa1SBrad Love { 715b53f2fa1SBrad Love int status = 0; 716b53f2fa1SBrad Love u32 reg_val, reg_val1; 717b53f2fa1SBrad Love 718b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 719b53f2fa1SBrad Love 720b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 721b53f2fa1SBrad Love if (status) 722b53f2fa1SBrad Love goto err_finish; 723b53f2fa1SBrad Love 724b53f2fa1SBrad Love /* set XTAL capacitance */ 725b53f2fa1SBrad Love reg_val &= 0xFFFFFFE0; 726b53f2fa1SBrad Love reg_val |= dev_xtal->xtal_cap; 727b53f2fa1SBrad Love 728b53f2fa1SBrad Love /* set CLK OUT */ 729b53f2fa1SBrad Love reg_val = dev_xtal->clk_out_enable ? (reg_val | 0x0100) : (reg_val & 0xFFFFFEFF); 730b53f2fa1SBrad Love 731b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 732b53f2fa1SBrad Love if (status) 733b53f2fa1SBrad Love goto err_finish; 734b53f2fa1SBrad Love 735b53f2fa1SBrad Love /* set CLK OUT divider */ 736b53f2fa1SBrad Love reg_val = dev_xtal->clk_out_div_enable ? (reg_val | 0x0200) : (reg_val & 0xFFFFFDFF); 737b53f2fa1SBrad Love 738b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 739b53f2fa1SBrad Love if (status) 740b53f2fa1SBrad Love goto err_finish; 741b53f2fa1SBrad Love 742b53f2fa1SBrad Love /* set XTAL sharing */ 743b53f2fa1SBrad Love reg_val = dev_xtal->xtal_sharing_enable ? (reg_val | 0x010400) : (reg_val & 0xFFFEFBFF); 744b53f2fa1SBrad Love 745b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 746b53f2fa1SBrad Love if (status) 747b53f2fa1SBrad Love goto err_finish; 748b53f2fa1SBrad Love 749b53f2fa1SBrad Love /* enable/disable XTAL calibration, based on master/slave device */ 750b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 751b53f2fa1SBrad Love if (status) 752b53f2fa1SBrad Love goto err_finish; 753b53f2fa1SBrad Love 754b53f2fa1SBrad Love if (dev_xtal->xtal_calibration_enable) { 755b53f2fa1SBrad Love /* enable XTAL calibration and set XTAL amplitude to a higher value */ 756b53f2fa1SBrad Love reg_val1 &= 0xFFFFFFFD; 757b53f2fa1SBrad Love reg_val1 |= 0x30; 758b53f2fa1SBrad Love 759b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 760b53f2fa1SBrad Love if (status) 761b53f2fa1SBrad Love goto err_finish; 762b53f2fa1SBrad Love } else { 763b53f2fa1SBrad Love /* disable XTAL calibration */ 764b53f2fa1SBrad Love reg_val1 |= 0x2; 765b53f2fa1SBrad Love 766b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 767b53f2fa1SBrad Love if (status) 768b53f2fa1SBrad Love goto err_finish; 769b53f2fa1SBrad Love 770b53f2fa1SBrad Love /* set XTAL bias value */ 771b53f2fa1SBrad Love status = mxl692_memread(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); 772b53f2fa1SBrad Love if (status) 773b53f2fa1SBrad Love goto err_finish; 774b53f2fa1SBrad Love 775b53f2fa1SBrad Love reg_val &= 0xC0FFFFFF; 776b53f2fa1SBrad Love reg_val |= 0xA000000; 777b53f2fa1SBrad Love 778b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); 779b53f2fa1SBrad Love if (status) 780b53f2fa1SBrad Love goto err_finish; 781b53f2fa1SBrad Love } 782b53f2fa1SBrad Love 783b53f2fa1SBrad Love /* start XTAL calibration */ 784b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); 785b53f2fa1SBrad Love if (status) 786b53f2fa1SBrad Love goto err_finish; 787b53f2fa1SBrad Love 788b53f2fa1SBrad Love reg_val |= 0x8; 789b53f2fa1SBrad Love 790b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); 791b53f2fa1SBrad Love if (status) 792b53f2fa1SBrad Love goto err_finish; 793b53f2fa1SBrad Love 794b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 795b53f2fa1SBrad Love if (status) 796b53f2fa1SBrad Love goto err_finish; 797b53f2fa1SBrad Love 798b53f2fa1SBrad Love reg_val |= 0x10; 799b53f2fa1SBrad Love 800b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 801b53f2fa1SBrad Love if (status) 802b53f2fa1SBrad Love goto err_finish; 803b53f2fa1SBrad Love 804b53f2fa1SBrad Love status = mxl692_memread(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 805b53f2fa1SBrad Love if (status) 806b53f2fa1SBrad Love goto err_finish; 807b53f2fa1SBrad Love 808b53f2fa1SBrad Love reg_val &= 0xFFFFEFFF; 809b53f2fa1SBrad Love 810b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 811b53f2fa1SBrad Love if (status) 812b53f2fa1SBrad Love goto err_finish; 813b53f2fa1SBrad Love 814b53f2fa1SBrad Love reg_val |= 0x1000; 815b53f2fa1SBrad Love 816b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 817b53f2fa1SBrad Love if (status) 818b53f2fa1SBrad Love goto err_finish; 819b53f2fa1SBrad Love 820b53f2fa1SBrad Love usleep_range(45000, 55000); 821b53f2fa1SBrad Love 822b53f2fa1SBrad Love err_finish: 823b53f2fa1SBrad Love if (status) 824b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 825b53f2fa1SBrad Love return status; 826b53f2fa1SBrad Love } 827b53f2fa1SBrad Love 828b53f2fa1SBrad Love static int mxl692_powermode(struct mxl692_dev *dev, 829b53f2fa1SBrad Love enum MXL_EAGLE_POWER_MODE_E power_mode) 830b53f2fa1SBrad Love { 831b53f2fa1SBrad Love int status = 0; 832b53f2fa1SBrad Love u8 mode = power_mode; 833b53f2fa1SBrad Love 834b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "%s\n", 835b53f2fa1SBrad Love power_mode == MXL_EAGLE_POWER_MODE_SLEEP ? "sleep" : "active"); 836b53f2fa1SBrad Love 837b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 838b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_POWERMODE_SET, 839b53f2fa1SBrad Love &mode, 840b53f2fa1SBrad Love sizeof(u8), 841b53f2fa1SBrad Love NULL, 842b53f2fa1SBrad Love 0); 843b53f2fa1SBrad Love if (status) { 844b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 845b53f2fa1SBrad Love return status; 846b53f2fa1SBrad Love } 847b53f2fa1SBrad Love 848b53f2fa1SBrad Love dev->power_mode = power_mode; 849b53f2fa1SBrad Love 850b53f2fa1SBrad Love return status; 851b53f2fa1SBrad Love } 852b53f2fa1SBrad Love 853b53f2fa1SBrad Love static int mxl692_init(struct dvb_frontend *fe) 854b53f2fa1SBrad Love { 855b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 856b53f2fa1SBrad Love struct i2c_client *client = dev->i2c_client; 857b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 858b53f2fa1SBrad Love int status = 0; 859b53f2fa1SBrad Love const struct firmware *firmware; 860b53f2fa1SBrad Love struct MXL_EAGLE_DEV_XTAL_T xtal_config = {}; 861b53f2fa1SBrad Love 862b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 863b53f2fa1SBrad Love 864b53f2fa1SBrad Love if (dev->init_done) 865b53f2fa1SBrad Love goto warm; 866b53f2fa1SBrad Love 867b53f2fa1SBrad Love dev->seqnum = 1; 868b53f2fa1SBrad Love 869b53f2fa1SBrad Love status = mxl692_reset(dev); 870b53f2fa1SBrad Love if (status) 871b53f2fa1SBrad Love goto err; 872b53f2fa1SBrad Love 873b53f2fa1SBrad Love usleep_range(50 * 1000, 60 * 1000); /* was 1000! */ 874b53f2fa1SBrad Love 875b53f2fa1SBrad Love status = mxl692_config_regulators(dev, MXL_EAGLE_POWER_SUPPLY_SOURCE_DUAL); 876b53f2fa1SBrad Love if (status) 877b53f2fa1SBrad Love goto err; 878b53f2fa1SBrad Love 879b53f2fa1SBrad Love xtal_config.xtal_cap = 26; 880b53f2fa1SBrad Love xtal_config.clk_out_div_enable = 0; 881b53f2fa1SBrad Love xtal_config.clk_out_enable = 0; 882b53f2fa1SBrad Love xtal_config.xtal_calibration_enable = 0; 883b53f2fa1SBrad Love xtal_config.xtal_sharing_enable = 1; 884b53f2fa1SBrad Love status = mxl692_config_xtal(dev, &xtal_config); 885b53f2fa1SBrad Love if (status) 886b53f2fa1SBrad Love goto err; 887b53f2fa1SBrad Love 888b53f2fa1SBrad Love status = request_firmware(&firmware, MXL692_FIRMWARE, &client->dev); 889b53f2fa1SBrad Love if (status) { 890b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "firmware missing? %s\n", 891b53f2fa1SBrad Love MXL692_FIRMWARE); 892b53f2fa1SBrad Love goto err; 893b53f2fa1SBrad Love } 894b53f2fa1SBrad Love 895b53f2fa1SBrad Love status = mxl692_fwdownload(dev, firmware->data, firmware->size); 896b53f2fa1SBrad Love if (status) 897b53f2fa1SBrad Love goto err_release_firmware; 898b53f2fa1SBrad Love 899b53f2fa1SBrad Love release_firmware(firmware); 900b53f2fa1SBrad Love 901b53f2fa1SBrad Love status = mxl692_get_versions(dev); 902b53f2fa1SBrad Love if (status) 903b53f2fa1SBrad Love goto err; 904b53f2fa1SBrad Love 905b53f2fa1SBrad Love dev->power_mode = MXL_EAGLE_POWER_MODE_SLEEP; 906b53f2fa1SBrad Love warm: 907b53f2fa1SBrad Love /* Config Device Power Mode */ 908b53f2fa1SBrad Love if (dev->power_mode != MXL_EAGLE_POWER_MODE_ACTIVE) { 909b53f2fa1SBrad Love status = mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_ACTIVE); 910b53f2fa1SBrad Love if (status) 911b53f2fa1SBrad Love goto err; 912b53f2fa1SBrad Love 913b53f2fa1SBrad Love usleep_range(50 * 1000, 60 * 1000); /* was 500! */ 914b53f2fa1SBrad Love } 915b53f2fa1SBrad Love 916b53f2fa1SBrad Love /* Init stats here to indicate which stats are supported */ 917b53f2fa1SBrad Love c->cnr.len = 1; 918b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 919b53f2fa1SBrad Love c->post_bit_error.len = 1; 920b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 921b53f2fa1SBrad Love c->post_bit_count.len = 1; 922b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 923b53f2fa1SBrad Love c->block_error.len = 1; 924b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 925b53f2fa1SBrad Love 926b53f2fa1SBrad Love dev->init_done = 1; 927b53f2fa1SBrad Love return 0; 928b53f2fa1SBrad Love err_release_firmware: 929b53f2fa1SBrad Love release_firmware(firmware); 930b53f2fa1SBrad Love err: 931b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 932b53f2fa1SBrad Love return status; 933b53f2fa1SBrad Love } 934b53f2fa1SBrad Love 935b53f2fa1SBrad Love static int mxl692_sleep(struct dvb_frontend *fe) 936b53f2fa1SBrad Love { 937b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 938b53f2fa1SBrad Love 939b53f2fa1SBrad Love if (dev->power_mode != MXL_EAGLE_POWER_MODE_SLEEP) 940b53f2fa1SBrad Love mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_SLEEP); 941b53f2fa1SBrad Love 942b53f2fa1SBrad Love return 0; 943b53f2fa1SBrad Love } 944b53f2fa1SBrad Love 945b53f2fa1SBrad Love static int mxl692_set_frontend(struct dvb_frontend *fe) 946b53f2fa1SBrad Love { 947b53f2fa1SBrad Love struct dtv_frontend_properties *p = &fe->dtv_property_cache; 948b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 949b53f2fa1SBrad Love 950b53f2fa1SBrad Love int status = 0; 951b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type; 952b53f2fa1SBrad Love struct MXL_EAGLE_MPEGOUT_PARAMS_T mpeg_params = {}; 953b53f2fa1SBrad Love enum MXL_EAGLE_QAM_DEMOD_ANNEX_TYPE_E qam_annex = MXL_EAGLE_QAM_DEMOD_ANNEX_B; 954b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_PARAMS_T qam_params = {}; 955b53f2fa1SBrad Love struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T tuner_params = {}; 956b53f2fa1SBrad Love u8 op_param = 0; 957b53f2fa1SBrad Love 958b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 959b53f2fa1SBrad Love 960b53f2fa1SBrad Love switch (p->modulation) { 961b53f2fa1SBrad Love case VSB_8: 962b53f2fa1SBrad Love demod_type = MXL_EAGLE_DEMOD_TYPE_ATSC; 963b53f2fa1SBrad Love break; 964b53f2fa1SBrad Love case QAM_AUTO: 965b53f2fa1SBrad Love case QAM_64: 966b53f2fa1SBrad Love case QAM_128: 967b53f2fa1SBrad Love case QAM_256: 968b53f2fa1SBrad Love demod_type = MXL_EAGLE_DEMOD_TYPE_QAM; 969b53f2fa1SBrad Love break; 970b53f2fa1SBrad Love default: 971b53f2fa1SBrad Love return -EINVAL; 972b53f2fa1SBrad Love } 973b53f2fa1SBrad Love 974b53f2fa1SBrad Love if (dev->current_frequency == p->frequency && dev->demod_type == demod_type) { 975b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "already set up\n"); 976b53f2fa1SBrad Love return 0; 977b53f2fa1SBrad Love } 978b53f2fa1SBrad Love 979b53f2fa1SBrad Love dev->current_frequency = -1; 980b53f2fa1SBrad Love dev->demod_type = -1; 981b53f2fa1SBrad Love 982b53f2fa1SBrad Love op_param = demod_type; 983b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 984b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_DEMODULATOR_TYPE_SET, 985b53f2fa1SBrad Love &op_param, 986b53f2fa1SBrad Love sizeof(u8), 987b53f2fa1SBrad Love NULL, 988b53f2fa1SBrad Love 0); 989b53f2fa1SBrad Love if (status) { 990b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, 991b53f2fa1SBrad Love "DEVICE_DEMODULATOR_TYPE_SET...FAIL err 0x%x\n", status); 992b53f2fa1SBrad Love goto err; 993b53f2fa1SBrad Love } 994b53f2fa1SBrad Love 995b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 996b53f2fa1SBrad Love 997b53f2fa1SBrad Love mpeg_params.mpeg_parallel = 0; 998b53f2fa1SBrad Love mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_MSB_1ST; 999b53f2fa1SBrad Love mpeg_params.mpeg_sync_pulse_width = MXL_EAGLE_DATA_SYNC_WIDTH_BIT; 1000b53f2fa1SBrad Love mpeg_params.mpeg_valid_pol = MXL_EAGLE_CLOCK_POSITIVE; 1001b53f2fa1SBrad Love mpeg_params.mpeg_sync_pol = MXL_EAGLE_CLOCK_POSITIVE; 1002b53f2fa1SBrad Love mpeg_params.mpeg_clk_pol = MXL_EAGLE_CLOCK_NEGATIVE; 1003b53f2fa1SBrad Love mpeg_params.mpeg3wire_mode_enable = 0; 1004b53f2fa1SBrad Love mpeg_params.mpeg_clk_freq = MXL_EAGLE_MPEG_CLOCK_27MHZ; 1005b53f2fa1SBrad Love 1006b53f2fa1SBrad Love switch (demod_type) { 1007b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1008b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1009b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, 1010b53f2fa1SBrad Love (u8 *)&mpeg_params, 1011b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), 1012b53f2fa1SBrad Love NULL, 1013b53f2fa1SBrad Love 0); 1014b53f2fa1SBrad Love if (status) 1015b53f2fa1SBrad Love goto err; 1016b53f2fa1SBrad Love break; 1017b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1018b53f2fa1SBrad Love if (qam_annex == MXL_EAGLE_QAM_DEMOD_ANNEX_A) 1019b53f2fa1SBrad Love mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_LSB_1ST; 1020b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1021b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, 1022b53f2fa1SBrad Love (u8 *)&mpeg_params, 1023b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), 1024b53f2fa1SBrad Love NULL, 1025b53f2fa1SBrad Love 0); 1026b53f2fa1SBrad Love if (status) 1027b53f2fa1SBrad Love goto err; 1028b53f2fa1SBrad Love 1029b53f2fa1SBrad Love qam_params.annex_type = qam_annex; 1030b53f2fa1SBrad Love qam_params.qam_type = MXL_EAGLE_QAM_DEMOD_AUTO; 1031b53f2fa1SBrad Love qam_params.iq_flip = MXL_EAGLE_DEMOD_IQ_AUTO; 1032b53f2fa1SBrad Love if (p->modulation == QAM_64) 1033b53f2fa1SBrad Love qam_params.symbol_rate_hz = 5057000; 1034b53f2fa1SBrad Love else 1035b53f2fa1SBrad Love qam_params.symbol_rate_hz = 5361000; 1036b53f2fa1SBrad Love 1037b53f2fa1SBrad Love qam_params.symbol_rate_256qam_hz = 5361000; 1038b53f2fa1SBrad Love 1039b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1040b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_PARAMS_SET, 1041b53f2fa1SBrad Love (u8 *)&qam_params, 1042b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_PARAMS_T), 1043b53f2fa1SBrad Love NULL, 0); 1044b53f2fa1SBrad Love if (status) 1045b53f2fa1SBrad Love goto err; 1046b53f2fa1SBrad Love 1047b53f2fa1SBrad Love break; 1048b53f2fa1SBrad Love default: 1049b53f2fa1SBrad Love break; 1050b53f2fa1SBrad Love } 1051b53f2fa1SBrad Love 1052b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1053b53f2fa1SBrad Love 1054b53f2fa1SBrad Love tuner_params.freq_hz = p->frequency; 1055b53f2fa1SBrad Love tuner_params.bandwidth = MXL_EAGLE_TUNER_BW_6MHZ; 1056b53f2fa1SBrad Love tuner_params.tune_mode = MXL_EAGLE_TUNER_CHANNEL_TUNE_MODE_VIEW; 1057b53f2fa1SBrad Love 1058b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, " Tuning Freq: %d %s\n", tuner_params.freq_hz, 1059b53f2fa1SBrad Love demod_type == MXL_EAGLE_DEMOD_TYPE_ATSC ? "ATSC" : "QAM"); 1060b53f2fa1SBrad Love 1061b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1062b53f2fa1SBrad Love MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET, 1063b53f2fa1SBrad Love (u8 *)&tuner_params, 1064b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T), 1065b53f2fa1SBrad Love NULL, 1066b53f2fa1SBrad Love 0); 1067b53f2fa1SBrad Love if (status) 1068b53f2fa1SBrad Love goto err; 1069b53f2fa1SBrad Love 1070b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1071b53f2fa1SBrad Love 1072b53f2fa1SBrad Love switch (demod_type) { 1073b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1074b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1075b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_INIT_SET, 1076b53f2fa1SBrad Love NULL, 0, NULL, 0); 1077b53f2fa1SBrad Love if (status) 1078b53f2fa1SBrad Love goto err; 1079b53f2fa1SBrad Love break; 1080b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1081b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1082b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_RESTART_SET, 1083b53f2fa1SBrad Love NULL, 0, NULL, 0); 1084b53f2fa1SBrad Love if (status) 1085b53f2fa1SBrad Love goto err; 1086b53f2fa1SBrad Love break; 1087b53f2fa1SBrad Love default: 1088b53f2fa1SBrad Love break; 1089b53f2fa1SBrad Love } 1090b53f2fa1SBrad Love 1091b53f2fa1SBrad Love dev->demod_type = demod_type; 1092b53f2fa1SBrad Love dev->current_frequency = p->frequency; 1093b53f2fa1SBrad Love 1094b53f2fa1SBrad Love return 0; 1095b53f2fa1SBrad Love err: 1096b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 1097b53f2fa1SBrad Love return status; 1098b53f2fa1SBrad Love } 1099b53f2fa1SBrad Love 1100b53f2fa1SBrad Love static int mxl692_get_frontend(struct dvb_frontend *fe, 1101b53f2fa1SBrad Love struct dtv_frontend_properties *p) 1102b53f2fa1SBrad Love { 1103b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1104b53f2fa1SBrad Love 1105b53f2fa1SBrad Love p->modulation = c->modulation; 1106b53f2fa1SBrad Love p->frequency = c->frequency; 1107b53f2fa1SBrad Love 1108b53f2fa1SBrad Love return 0; 1109b53f2fa1SBrad Love } 1110b53f2fa1SBrad Love 1111b53f2fa1SBrad Love static int mxl692_read_snr(struct dvb_frontend *fe, u16 *snr) 1112b53f2fa1SBrad Love { 1113b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1114b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1115b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1116b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; 1117b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; 1118b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1119b53f2fa1SBrad Love int mxl_status = 0; 1120b53f2fa1SBrad Love 1121b53f2fa1SBrad Love *snr = 0; 1122b53f2fa1SBrad Love 1123b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1124b53f2fa1SBrad Love 1125b53f2fa1SBrad Love atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; 1126b53f2fa1SBrad Love qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; 1127b53f2fa1SBrad Love 1128b53f2fa1SBrad Love switch (demod_type) { 1129b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1130b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1131b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_STATUS_GET, 1132b53f2fa1SBrad Love NULL, 1133b53f2fa1SBrad Love 0, 1134b53f2fa1SBrad Love rx_buf, 1135b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); 1136b53f2fa1SBrad Love if (!mxl_status) { 1137b53f2fa1SBrad Love *snr = (u16)(atsc_status->snr_db_tenths / 10); 1138b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1139b53f2fa1SBrad Love c->cnr.stat[0].svalue = *snr; 1140b53f2fa1SBrad Love } 1141b53f2fa1SBrad Love break; 1142b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1143b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1144b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_STATUS_GET, 1145b53f2fa1SBrad Love NULL, 1146b53f2fa1SBrad Love 0, 1147b53f2fa1SBrad Love rx_buf, 1148b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); 1149b53f2fa1SBrad Love if (!mxl_status) 1150b53f2fa1SBrad Love *snr = (u16)(qam_status->snr_db_tenths / 10); 1151b53f2fa1SBrad Love break; 1152b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1153b53f2fa1SBrad Love default: 1154b53f2fa1SBrad Love break; 1155b53f2fa1SBrad Love } 1156b53f2fa1SBrad Love 1157b53f2fa1SBrad Love if (mxl_status) 1158b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1159b53f2fa1SBrad Love return mxl_status; 1160b53f2fa1SBrad Love } 1161b53f2fa1SBrad Love 1162b53f2fa1SBrad Love static int mxl692_read_ber_ucb(struct dvb_frontend *fe) 1163b53f2fa1SBrad Love { 1164b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1165b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1166b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1167b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *atsc_errors; 1168b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1169b53f2fa1SBrad Love int mxl_status = 0; 1170b53f2fa1SBrad Love u32 utmp; 1171b53f2fa1SBrad Love 1172b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1173b53f2fa1SBrad Love 1174b53f2fa1SBrad Love atsc_errors = (struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *)&rx_buf; 1175b53f2fa1SBrad Love 1176b53f2fa1SBrad Love switch (demod_type) { 1177b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1178b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1179b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET, 1180b53f2fa1SBrad Love NULL, 1181b53f2fa1SBrad Love 0, 1182b53f2fa1SBrad Love rx_buf, 1183b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T)); 1184b53f2fa1SBrad Love if (!mxl_status) { 1185b53f2fa1SBrad Love if (atsc_errors->error_packets == 0) 1186b53f2fa1SBrad Love utmp = 0; 1187b53f2fa1SBrad Love else 1188b53f2fa1SBrad Love utmp = ((atsc_errors->error_bytes / atsc_errors->error_packets) * 1189b53f2fa1SBrad Love atsc_errors->total_packets); 1190b53f2fa1SBrad Love /* ber */ 1191b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 1192b53f2fa1SBrad Love c->post_bit_error.stat[0].uvalue += atsc_errors->error_bytes; 1193b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 1194b53f2fa1SBrad Love c->post_bit_count.stat[0].uvalue += utmp; 1195b53f2fa1SBrad Love /* ucb */ 1196b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_COUNTER; 1197b53f2fa1SBrad Love c->block_error.stat[0].uvalue += atsc_errors->error_packets; 1198b53f2fa1SBrad Love 1199b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "%llu %llu\n", 1200b53f2fa1SBrad Love c->post_bit_count.stat[0].uvalue, c->block_error.stat[0].uvalue); 1201b53f2fa1SBrad Love } 1202b53f2fa1SBrad Love break; 1203b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1204b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1205b53f2fa1SBrad Love default: 1206b53f2fa1SBrad Love break; 1207b53f2fa1SBrad Love } 1208b53f2fa1SBrad Love 1209b53f2fa1SBrad Love if (mxl_status) 1210b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1211b53f2fa1SBrad Love 1212b53f2fa1SBrad Love return mxl_status; 1213b53f2fa1SBrad Love } 1214b53f2fa1SBrad Love 1215b53f2fa1SBrad Love static int mxl692_read_status(struct dvb_frontend *fe, 1216b53f2fa1SBrad Love enum fe_status *status) 1217b53f2fa1SBrad Love { 1218b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1219b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1220b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1221b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; 1222b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; 1223b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1224b53f2fa1SBrad Love int mxl_status = 0; 1225b53f2fa1SBrad Love *status = 0; 1226b53f2fa1SBrad Love 1227b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1228b53f2fa1SBrad Love 1229b53f2fa1SBrad Love atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; 1230b53f2fa1SBrad Love qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; 1231b53f2fa1SBrad Love 1232b53f2fa1SBrad Love switch (demod_type) { 1233b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1234b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1235b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_STATUS_GET, 1236b53f2fa1SBrad Love NULL, 1237b53f2fa1SBrad Love 0, 1238b53f2fa1SBrad Love rx_buf, 1239b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); 1240b53f2fa1SBrad Love if (!mxl_status && atsc_status->atsc_lock) { 1241b53f2fa1SBrad Love *status |= FE_HAS_SIGNAL; 1242b53f2fa1SBrad Love *status |= FE_HAS_CARRIER; 1243b53f2fa1SBrad Love *status |= FE_HAS_VITERBI; 1244b53f2fa1SBrad Love *status |= FE_HAS_SYNC; 1245b53f2fa1SBrad Love *status |= FE_HAS_LOCK; 1246b53f2fa1SBrad Love 1247b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1248b53f2fa1SBrad Love c->cnr.stat[0].svalue = atsc_status->snr_db_tenths / 10; 1249b53f2fa1SBrad Love } 1250b53f2fa1SBrad Love break; 1251b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1252b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1253b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_STATUS_GET, 1254b53f2fa1SBrad Love NULL, 1255b53f2fa1SBrad Love 0, 1256b53f2fa1SBrad Love rx_buf, 1257b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); 1258b53f2fa1SBrad Love if (!mxl_status && qam_status->qam_locked) { 1259b53f2fa1SBrad Love *status |= FE_HAS_SIGNAL; 1260b53f2fa1SBrad Love *status |= FE_HAS_CARRIER; 1261b53f2fa1SBrad Love *status |= FE_HAS_VITERBI; 1262b53f2fa1SBrad Love *status |= FE_HAS_SYNC; 1263b53f2fa1SBrad Love *status |= FE_HAS_LOCK; 1264b53f2fa1SBrad Love 1265b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1266b53f2fa1SBrad Love c->cnr.stat[0].svalue = qam_status->snr_db_tenths / 10; 1267b53f2fa1SBrad Love } 1268b53f2fa1SBrad Love break; 1269b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1270b53f2fa1SBrad Love default: 1271b53f2fa1SBrad Love break; 1272b53f2fa1SBrad Love } 1273b53f2fa1SBrad Love 1274b53f2fa1SBrad Love if ((*status & FE_HAS_LOCK) == 0) { 1275b53f2fa1SBrad Love /* No lock, reset all statistics */ 1276b53f2fa1SBrad Love c->cnr.len = 1; 1277b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1278b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1279b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1280b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1281b53f2fa1SBrad Love return 0; 1282b53f2fa1SBrad Love } 1283b53f2fa1SBrad Love 1284b53f2fa1SBrad Love if (mxl_status) 1285b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1286b53f2fa1SBrad Love else 1287b53f2fa1SBrad Love mxl_status = mxl692_read_ber_ucb(fe); 1288b53f2fa1SBrad Love 1289b53f2fa1SBrad Love return mxl_status; 1290b53f2fa1SBrad Love } 1291b53f2fa1SBrad Love 1292b53f2fa1SBrad Love static const struct dvb_frontend_ops mxl692_ops = { 1293b53f2fa1SBrad Love .delsys = { SYS_ATSC }, 1294b53f2fa1SBrad Love .info = { 1295b53f2fa1SBrad Love .name = "MaxLinear MxL692 VSB tuner-demodulator", 1296b53f2fa1SBrad Love .frequency_min_hz = 54000000, 1297b53f2fa1SBrad Love .frequency_max_hz = 858000000, 1298b53f2fa1SBrad Love .frequency_stepsize_hz = 62500, 1299b53f2fa1SBrad Love .caps = FE_CAN_8VSB 1300b53f2fa1SBrad Love }, 1301b53f2fa1SBrad Love 1302b53f2fa1SBrad Love .init = mxl692_init, 1303b53f2fa1SBrad Love .sleep = mxl692_sleep, 1304b53f2fa1SBrad Love .set_frontend = mxl692_set_frontend, 1305b53f2fa1SBrad Love .get_frontend = mxl692_get_frontend, 1306b53f2fa1SBrad Love 1307b53f2fa1SBrad Love .read_status = mxl692_read_status, 1308b53f2fa1SBrad Love .read_snr = mxl692_read_snr, 1309b53f2fa1SBrad Love }; 1310b53f2fa1SBrad Love 1311*f35a7249SUwe Kleine-König static int mxl692_probe(struct i2c_client *client) 1312b53f2fa1SBrad Love { 1313b53f2fa1SBrad Love struct mxl692_config *config = client->dev.platform_data; 1314b53f2fa1SBrad Love struct mxl692_dev *dev; 1315b53f2fa1SBrad Love int ret = 0; 1316b53f2fa1SBrad Love 1317b53f2fa1SBrad Love dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1318b53f2fa1SBrad Love if (!dev) { 1319b53f2fa1SBrad Love ret = -ENOMEM; 1320b53f2fa1SBrad Love dev_dbg(&client->dev, "kzalloc() failed\n"); 1321b53f2fa1SBrad Love goto err; 1322b53f2fa1SBrad Love } 1323b53f2fa1SBrad Love 1324b53f2fa1SBrad Love memcpy(&dev->fe.ops, &mxl692_ops, sizeof(struct dvb_frontend_ops)); 1325b53f2fa1SBrad Love dev->fe.demodulator_priv = dev; 1326b53f2fa1SBrad Love dev->i2c_client = client; 1327b53f2fa1SBrad Love *config->fe = &dev->fe; 1328b53f2fa1SBrad Love mutex_init(&dev->i2c_lock); 1329b53f2fa1SBrad Love i2c_set_clientdata(client, dev); 1330b53f2fa1SBrad Love 1331b53f2fa1SBrad Love dev_info(&client->dev, "MaxLinear mxl692 successfully attached\n"); 1332b53f2fa1SBrad Love 1333b53f2fa1SBrad Love return 0; 1334b53f2fa1SBrad Love err: 1335b53f2fa1SBrad Love dev_dbg(&client->dev, "failed %d\n", ret); 1336b53f2fa1SBrad Love return -ENODEV; 1337b53f2fa1SBrad Love } 1338b53f2fa1SBrad Love 1339ed5c2f5fSUwe Kleine-König static void mxl692_remove(struct i2c_client *client) 1340b53f2fa1SBrad Love { 1341b53f2fa1SBrad Love struct mxl692_dev *dev = i2c_get_clientdata(client); 1342b53f2fa1SBrad Love 1343b53f2fa1SBrad Love dev->fe.demodulator_priv = NULL; 1344b53f2fa1SBrad Love i2c_set_clientdata(client, NULL); 1345b53f2fa1SBrad Love kfree(dev); 1346b53f2fa1SBrad Love } 1347b53f2fa1SBrad Love 1348b53f2fa1SBrad Love static const struct i2c_device_id mxl692_id_table[] = { 1349b53f2fa1SBrad Love {"mxl692", 0}, 1350b53f2fa1SBrad Love {} 1351b53f2fa1SBrad Love }; 1352b53f2fa1SBrad Love MODULE_DEVICE_TABLE(i2c, mxl692_id_table); 1353b53f2fa1SBrad Love 1354b53f2fa1SBrad Love static struct i2c_driver mxl692_driver = { 1355b53f2fa1SBrad Love .driver = { 1356b53f2fa1SBrad Love .name = "mxl692", 1357b53f2fa1SBrad Love }, 1358*f35a7249SUwe Kleine-König .probe_new = mxl692_probe, 1359b53f2fa1SBrad Love .remove = mxl692_remove, 1360b53f2fa1SBrad Love .id_table = mxl692_id_table, 1361b53f2fa1SBrad Love }; 1362b53f2fa1SBrad Love 1363b53f2fa1SBrad Love module_i2c_driver(mxl692_driver); 1364b53f2fa1SBrad Love 1365b53f2fa1SBrad Love MODULE_AUTHOR("Brad Love <brad@nextdimension.cc>"); 1366b53f2fa1SBrad Love MODULE_DESCRIPTION("MaxLinear MxL692 demodulator/tuner driver"); 1367b53f2fa1SBrad Love MODULE_FIRMWARE(MXL692_FIRMWARE); 1368b53f2fa1SBrad Love MODULE_LICENSE("GPL"); 1369